Type-writing machine.



lb. PI'MosHBR. TYPE WRITING MAOHINB.

-y LPPLIOLTIOI FILED 00T, 2li, 1910. 981,214. Patented 18.11.10, 1911.

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CHARLES'PHILO MosHER, or NEW YORK, N. Y., AssIGNoR To UNION TYPEWBITEBCOMPANY, F ILION, NEW YORK, A coRPoRA'rIoN'oF NEW YORK.

TYPE-WRITING MACHINE.

Speccation of Letters Patent.

Patented Jan. 10, 41911.

Application filed October 24, 1910. Serial No. 588,659.

Tovall `'whom 'it may concern: y

ABe it known that I, CHARLES P. Mosman, citizenl of the United States,and resident of the borough of Brooklyn, city ofNow York,

in the county of Kings and State ofNew York, have invented certain newand useful Improvements 1n Type-1V r1" :ng Maclunes,

' ofwhich the following is a specification. My invention relates totypewriting ma chilies and more particularly to carriage supportingmeans, and the 'main object of said invention is to-provide simple andellicicnt meansof'the character specified by which but little resistanceis offered tothe travel of the carriage and by which the carriage willAbe firmly guided in its travel.

To the above and other ends my invention `.consists 'in the features ofconstruction, ar-

rangements of parts and combinations of def vices to behereinafter'described and particularly pointed out in the appendedclanns.

In the accompanying drawings wherein like 4reference characters indicatecorrespondin" parts in the various views, Figure 1 1s a tragmentaryvertical sectional view showing the upper portion of a typewritngmachine embodying 'my invent-ion. F ig. 2 is a vertical transversesectional view of the same taken on the line :n-x'of Fig. 1 andlool'ing,lr in the direction of the arrow at said line. Fig. 3 is atransversesectional view taken centrally through one of the pinions, tobe hereinafter' more fully described.

The top plate 1 of the machine is supported `on corner posts 2, and hasupwardly and forwardly extending lugs or supports .3 thereon. Aguide'rod 1 is detachably seto the lugs 3 by screws The guide rod 11 has.i-nclinedvtracks or liat bearing faces G formed on opposite sides ofthe top thereof.. These tracks (i are preferably formed by groovin'nrthe guide rod longitadinally te form flat faces which 4are inclined a-tan angle to each other as indi-cated -i-n Fig. L The low-er side of therod has a groove '7 thexeil-l which extends longitud'i- .nally of therod th'ronghont, or'substantially thrmmhoat, the length thereof. A rack'8 Vis firmly seated -i-n said groove; the teeth of the rack extendingbeyond the periphery of guide at thelowver side of the latter. The, iderod on opposite sides of the rack 8 Vis formed 'with flat t: es 9' whichconstitute tracks against which peripheral bearings 10 .on .pinions 11are adapted to bear for purso|nrrator 25 in the travel of `the czar-riaposes whichV will hereinafter more clearly appear.- l

T lle-carriage proper may be of any snitable construction, but as shownin the pres* ent instance comprises end. bars 12 havino bearing openingsfor a shaft 13, on whie a cylindrical platen 14 ismounted. The end bars12 of the carriage are 'united by a forwardcross bar 15, provided withan ant'b friction roller 16 received betweenl fixed guide rails 17 and18 secured to the top plate of the machine. The end bars 12 of thecarriage are connected at the rear ends thereof by a'bearing member,designated as a. whole by the reference numeral 19. This bearing memberis in the, nature of a sleeve which surrounds the guide rod 4, and isprovided at the rearslde thereof with Iongitudinally extending cut-outsor slots 20; These slots extend inwardly in op site dif rections fromthe ends of the bearln member and each slot terminates at 21 be on themiddle of thebeari-ng n'nanl'ner' is so as to provide a centralconnecting web 22'. Thus a connection 1s formedbetween the lip; per andlower portions-of the bearing member at the rear'as well as 'at thefront thereof. By arranging the slots 20 in the manner shown, they areadapted to receive the forwardly; extending portions of 'supports 3, asindicated in Fig. 2, and to ai ford a free movement of the ends of thebearing member past said Vsap-[mits in the travel of the carriage fromside to side of the machine.

The bearing;r member 19' provided with inclined tracks or bearing and isitself surrounded by the bearing member 1'9. Rectangular openings 26 amformed near cach end yof lthe sleeve-like separator for the reception ofthe anti-friction- 4rollers 24. lt will thtnfefore understood that theanti-friction rnllersrare maintained properly positioned and.separatedby the from side lo side of the machine.

In-order to always maintain a definite relation between the rollerlseparator and the carriage, and consequently between the' anti-frictionrollers and the carnage, I have vprovided means which will now bedescribed. A

Depending ears 27 are-formed on the sep.- arator-'near each end thereof.A pivot pm 28 extends through openings in each set of the ears 27' andconstitutes a ivot for aK pinion 11 hereinbefore referre t o. Tinspinion. is preferably formed, as indicated 1n Fig. 3, of a centraldisk'29, provided with peripheral teeth A30. Disks 31 are arranged on oposite sides of the disk' 29 and are (l) thereto by rivets 32, so as tounlte the three disks to constitute a single combination pinionandbearing roller. The disks 3l are provided wlth peripheral bearmgs 10,as herelnbefore pointed out. These bearmgs are adapted to co-act withthe tracks 9 on the guide rod 4, whereas the teeth of the pinion mesh'with the -rack 8 secured to-the guide rod. A late-likeJ member orsupport 33 extends ongitudinally of the be'arlng member beneath the sameand throughout, or substantially throughout, the length of said bearingmember. The platelike sup-A port 33 is provided near each end thereofwith screws 34 and 35 on opposite sides of the center of said plate. Thescrews 34 are received in tapped openings in the bearing plate and bearat their upper ends against inwardly directed flanges 36 on the bearingmember. On the other hand, the screws 35 extend freely through o eninefsin the plate 33, on opposite sides o the laongitudinal' center thereof,and are received in tapped openings in the inwardly extending flanges 36on the bearing member. By this construction each end of the bearin plate33 is provided with independent adjusting means by which it may beraised or lowered and tixedly maintained in its adjusted osition on thebearing member of the carriage.

hus, by loosening the screws 34 and tightching the screws 35 the bearing'plate 33 will be elevated or adjusted toward the. bearing member on thecarriage, whereas when the screws 35 are loosened and the screws 34tightened the bearing plate 33 will be lowered. The bearing plate 33 hasa central longitudinally 37 therein, which preferably extends throughoutthe length of the 'bearing plate. Thisl longitudinally extending groove,or pocket, formed in t e bearing plate is adapted to receive a rack 3 8which coperates with the pinions`11. Near each end of the bearing plate33 is a tapped opening in the bottom thereof to receive a screw 39 whichextends, through the tapped opening, and bears at its upper end againstthe bottom of the rack 38 to effect a vertical adjustment of, said rack.It will therefore be understood .ber' on the carriage.

.to side of' they machine. Any

extending groove that the screws 39 constitute Aindividual adjustingmeans at opposite ends of the rack 38, whereby arela-tive adjustmentbetween the racks 38 and 8 maybe effected. Longitudinally extendingtracks 40 are formed on the bearing plate 33v on opposite sides of therack 38. These longitudmall extendthroughout, or. substantiallythroughout, t-he length of the bearing plate 3 3 and are adapted tocoperate with the peripheral bearings 10 on the' pinions 1.1. Theperipheral bearings 10 will' therefore be enga ed on opposite sides bythe tracks 9 of the guide rod and the tracks 40 of the bearing mem- Theroller. separator 25 will thus be supported by the roller bearings 10between said tracks 9 and 4 0, to maintain the separator out of contactwith the guide rod 4, and to maintain it in proper position out ofcontact with the bearingzmember 19 on the carriage. At the same timethe.eripheral bearings 10 prevent anupward isplaeement of the bearingmember 19 relatively to the fixed guide rod' 4. The adjusting-screws 34,35 and 39 constitute means by which a nice lrelative adjustment betweenthe, parts may .be effected, to compensate for wear; to maintain theparts in the proper relative positions; and to take up any lost motion,so that the carriage may be firmly guided in its movement from ,sidetendency of fore and aft or downward displacement is overcome orresisted by the anti-friction rollers 24, whereas the upward thrust ofthe bearing member 19 is resisted by the peripheral bearing members 10.

It will be observed that the pitch line of each of the pinons 1l isabout coincident with the companion peripheral bearings 10 so that thesurface speed of the pinion aud bearing members is the same.

lt will be understood that the travel of the roller separator and eachof the anti friction rollers 24 is equal to one-half the extent oftravel of the'carriage, and that this relation is constantly maintainedby the engagementof the pinions with the oppositely disposed racks onthe fixed guide rod and on the bearing member 19, which e'ngage thepinions on opposite sides. The relation of the parts is such that whenthe earriage is centrally maintained on the frame of the machine, theanti-friction rollers and the separator 25 will likewise be centrallypositioned with reference to the frame of the machine and the carriage.AThen the carringe travels in either direction theantifriction rollersand separator will travel in the same direction one-half the distancetraveled by the carriage, as indicated in Fig. 2. Various'ehanges may bemade without departing fromthe spirit and scope of my invention. i.

-ing tracks or bearings 40 preferab y extend Surrounds ljiage and saidguide rod, and a ollei cpagator which copcratns wit 1 said illtr's, saidseparator being in the natnie `o a sl'vv'e `which surrounds `Said guidt``r0d.-A

`2. Tn a lypcwl'iting lnachinmthc tainbiiiation 0f a carriage. a guidi`rnd thm'tfii, aiitifriction rnllcx'a interposcd hetwci'x thc can riaqeand said guida i-nd. a coller scp'aiata which cnpc-i'atcs with saidrollers, Sa'i'd chalatov being in the naturcof a sleeve4 which Said fguidcl 1nd, a' pinion ciiil'iird hy said. separator, a raclccai-licd' hysaidl carriage, and a second rack cari'icd' hy said `guide rnd', bothf'aaid racks mcshingij with said pinion. i

3. n atypcwritingiinacliinc'.the cni'x'vibin'a'v tion nt'a carriage;a'gliide rod thierlrfc'n', antifrictian rollers interposed"hctwec thcai- -ri'ag'gland said guidc'rod'. auollci'"Schaiati' which cnpcratcswith44 said rnllci-a said Sena-` rator benigna thel nature' ot `aslcc/e'wlnchd .ion lrollers intelipnsed zbeltwn,'t'h'c cairnd :nidwhichijfs provided-with tint-outs or hearing llnecxe ,which Surroundssaid"4 guide v120 tai" l terposed between rod and which is 'providedwith cut-outs or slots to' receive the supports-for said guide rod andafford an uiiobstructed movement of the ends of= the bearing sleeve pastsaid- 5 supports, aiitiifrietion rollers between Said bearing sleeve andguide rod and bearing agai'iist'the top of the rod on opposite sidesthe'reof,ia separator in the nature of a sleeve which surrounds said rodand which is iprthe rod 'and said bearing sleeve, and means for causingthe separator to travel one half tliedistance of the carriage.

'12. In a typewriting machine, ,the eoiiibination of a guide rodsupported on the top plate of the niachine, a carriage havin a bearingsleeve which Surrounds said guide rod and-which is provided withcut-outs or slots to receive the supports for said guide rod and affordan unobstructed movement of the ends of the bearing sleeve past saidsupports, anti-friction rollers ,between said bearing sleeve and guiderod and bearing against the top of thereof, a separator in the nature ofa sleeve which surrounds said rod and which is interposed between therod and said bearing sleeve, a pinion carried by said siparator beneathvthe guide rod, a. rack carried by the guide ro and a second rackcarried by'said bearing sleeve, said racks eoperating with said pinionon opposite sides thereof.

13. In a typewriting machine, the combination of a guide rod supportedon the top plate or' the machine, a carriage having a bearing sleevewhich surrounds said guide rod and which is provided with eut-outs orslots to receive the supports for said guide rod and aft'ordv anunobstructed movement 40 of the ends of. the beari sleeve past saidsupports, anti-friction rollers between said firing sleeve and guide rodand bearing againstthe top of the rod on opposite sides thereof, aseparator in the nature of a-sleeve which surrounds'vsaid rod and whichis iriterposed between the rod and said bearing sleeve, a pinion carriedby Said separator beneath the guide rod, a rack carried by the the rodon opposite sidesA guide rod, a.. second rack carriedby said bearingsleeve, said racksvcoperatingwith said pinion on opposite sides thereof,and means for effecting a. relative adjustment betweensaid racks.'

'14. In a typewriting machine, the combination of a ber,aguide rod, saidbearing-member and anti-friction rollers between uide rod, a searator'for4 said rollers, sai separator being in the nature of a' sleevewh1ch.surrounds saith guide rod, a pinion carried by said separator,said pinion having peripheral bearing portions, tracks 0nthe bearinmember and rod with which the periphera bearings on the pinion coperate,and racks on the bearing member and rod with which the teeth of thepinion coperate.

15. In a typewriting machine, the combination of a carriage having abearing member, a uide4 rod, anti-friction rollers interetween saidlbearing member and guide rod, a separator in the nature' of a. sleevewhich surrounds said guide rod and coperates with said anti-frictionrollers, and independent 'supporting rollers carried by said separatorfor supporting the separator in place.

16. In a typewriting machine, the combination ofla carriage having abearing ineinber, a guide rod, anti-friction rollers interposed betweensaid bearing ineinbei' and guide rod, a separator in the nature of asleevewhich surrounds said guide rod and coperates with saidanti-friction rollers, independent suipporting rollers carried by Saidseparator o1' supporting vthe separator lin place, a. support for saidindependent supporting rollers, and ineans for effecting an adj nstinentof said support.

Signed at the borough of Manhattan, city of New York, in the county ofNew York, land State of New York, this 21st dayA of October A. D. 1910.

CHARLES` PHILO MOSHER.

i W'itnesses: I i

CHARLES E. SMITH, MrF. HANNwniiia.

carriage having a bearing inem`

